The nonlinear system as linear system in form is composed of multiplicative control and additive control items in bilinear system using coordinate transformations.
使用坐标变换，将双线性系统中的倍增控制项和叠加控制项重新组合成与线性系统有相同形式的非线性系统。
The design problem of a feedforward and feedback optimal control law is studied for linear systems affected by additive persistent disturbances.
针对具有外部持续扰动的线性系统，研究前馈反馈最优控制律的设计问题。
The results show that the engine noise is additive weak-intensity continuous spectrum or compound spectrum and for some frequencies it is both continuous and linear.
结果表明：发动机噪声主要是加性、低强度的连续频谱，在某几个频率成分上也分布着线状频谱。
The results show that the engine noise is additive weak-intensity continuous spectrum or compound spectrum and for some frequencies it is both continuous and linear.
结果表明：发动机噪声主要是加性、低强度的连续频谱，在某几个频率成分上也分布着线状频谱。
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